C++爱好者 - 网友留言

老师布置的作业..AB行都是自己写的..程序运行不出来.谁教教我..不甚感激....



#include
#include
#include
#include
class Time{
public: Time(char* s=NULL);void operator+(Time& ti);
        void operator-(Time& ti);void Display();
protected:int hour;int minute;int second;
};
Time::Time(char* s)
{  char str[9]={0};char t[3]={0};
   if(s)
   strncpy(str, s, 8);
   else  
   _strtime(str);
         hour=atoi(strncpy(t,str,2))%24;
         minute=atoi(strncpy(t,&str[3],2))%60;
         second=atoi(strncpy(t,&str[6],2))%60;
}
void Time::operator +(Time& ti)
{
return Time(hour+& ti.hour,minute+& ti.minute,second+& ti.second);             .........A
}
void Time::operator -(Time& ti)      
{  
return Time(hour-& ti.hour,minute-& ti.minute,second-& ti.second);             .........B
}
void Time::Display()
{  char result[9]="XX:XX:XX";
   result[0]='0'+hour%10;
     result[1]='0'+hour/10;
     result[3]='0'+minute%10;
   result[4]='0'+minute/10;
     result[6]='0'+second%10;
     result[7]='0'+second/10;
     cout <}
void main()
{  
Time a;
           Time b("02:15:30");
a+b;
        a.Display();
}

--------------------next---------------------
G:\Personal\new\桌面\Cpp2.cpp(22) : error C2661: 'Time::Time' : no overloaded function takes 3 parameters
 没有被重载的函数来包含那3个变量！
G:\Personal\new\桌面\Cpp2.cpp(26) : error C2113: pointer can only be subtracted from another pointer
   指针只能从另一个指针来相减！
G:\Personal\new\桌面\Cpp2.cpp(26) : error C2113: pointer can only be subtracted from another pointer
 指针只能从另一个指针来相减！

G:\Personal\new\桌面\Cpp2.cpp(26) : error C2113: pointer can only be subtracted from another pointer
 指针只能从另一个指针来相减！

G:\Personal\new\桌面\Cpp2.cpp(26) : error C2661: 'Time::Time' : no overloaded function takes 3 parameters
没有被重载的函数来包含那3个变量！
G:\Personal\new\桌面\Cpp2.cpp(36) : error C2065: 'resule' : undeclared identifier
  未申报的标识符！

建议你仔细查下程序，你没有定义申明重载函数，而且指针运算有错误！




--------------------next---------------------